As some of my readers must have correctly surmised from my post about the Heathkit SA-2060, I am setting up for QRO, to the tune of about 400W on CW. The amp is an Ameritron ALS-600, which uses some massive FETs to achieve its power. Its power supply sits below it and delivers a nominal 50V and 15A. I don't like to drive equipment to its upper limits, however, so I'll be setting the RTTY/Normal switch to RTTY to drop the PS voltage to about 42V.
So, while many ops in my blog-roll are turning their power down to QRPp levels (VE3WDM awaits his 40dB attenuator), I'm afraid I've gone in the opposite direction for this one station. Though I've done some testing and a dry run and all seems to work fine, I've yet to make a QSO as I was distracted by the on-the-fritz K2 encoder, which I want to use as the exciter for the amp Furthermore, if you've followed my other blog, A Dull Roar, lately you know we've been dealing with a health issue with my wife for the last couple of months.
I made one mod to the tuner, which was to add some illumination to the meters, which seemed like an odd oversight for Heathkit. Now they have that nice fireside glow. On the rear of the chassis I placed a phono jack to match the 12V auxiliary jack on the back of the ALS-600 to supply the LEDs.
The amp, tuner, and some other radio goodies were in the big pile of boxes I had shipped down back in April. Unfortunately, the shipper left a few items behind including a PCB, relays, and IC sockets I need to build the AD5X QSK mod for the ALS-600. Meanwhile, I'm using a foot switch, which I had the foresight to order along with the amp. Almost unbelievably, the shipper still hasn't gotten the items in to port, so I re-ordered them via my friend who forwards our mail monthly. The same package will have the U3 and encoder for the K2. I won't wait until those things arrive though to get this equipment on the air for some trial runs. Of course, I'm really asking for it going QRO as it's bound to form bigger pile-ups with more weak signals. Tuning through the pack of callers using the mouse wheel and Flrig is hardly optimal, but we'll see how it goes until I can get the K2 ship-shape again. 73!